im not to sure about mac to mac...hp never made a network driver for that printer..what you can do however..is try to use a deskjet 550c its a generic driver for 99% of all hp printers including that one.
if that doesnt work..id get a new printer...a really awesome one to get would be a deskjet 6127 its a full network printer and probably the best printer hp has on its line as far as quality and durability, plus its 100% networkable with a built in printer server...all you do is plug it directly into your ethernet port on the airport and its got its own assign'd ip

thanks, ill look into that driver...
i dont really want to go out and buy a whole new printer, and if i did it would just be a $99 one because on one of the macs all that gets printed is black and white text